IS42S16160B-7TL ISSI, Integrated Silicon Solution Inc, IS42S16160B-7TL Datasheet - Page 21

• Manufacturer Part Number: IS42S16160B-7TL
• Description: IC SDRAM 256MBIT 143MHZ 54TSOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S16160B-7TL

• Package / Case: 54-TSOP II
• Memory Size: 256M (16Mx16)
• Format - Memory: RAM
• Memory Type: SDRAM
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Data Bus Width: 16 bit
• Organization: 32 Mbit x 8
• Maximum Clock Frequency: 143 MHz
• Access Time: 7 ns
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Current: 130 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 706-1018

IS42S83200B,
INITIALIZE AND LOAD MODE REGISTER
Integrated Silicon Solution, Inc. — www.issi.com
Rev. D
07/28/08
A0-A9, A11, A12
DQML, DQMH
Notes:
1. If CS is High at clock High time, all commands applied are NOP.
2. The Mode register may be loaded prior to the Auto-Refresh cycles if desired.
3. JEDEC and PC100 specify three clocks.
4. Outputs are guaranteed High-Z after the command is issued.
COMMAND
BA0, BA1
DQM/
CKE
CLK
A10
DQ
Power-up: V
and CLK stable
T = 200µs Min.
t
t
CMH
CKS
NOP
T
T0
t
t
CKH
CMS
t
CK
IS42S16160B
CC
SINGLE BANK
ALL BANKS
t
CMH
PRECHARGE
ALL BANKS
T1
Precharge
all banks
t
CMS
t
RP
t
CMH
REFRESH
Tn+1
AUTO
AUTO REFRESH
t
CMS
t
CH
At least 8 Auto-Refresh Commands
NOP
t
RC
(1)
t
CL
REFRESH
To+1
AUTO
AUTO REFRESH
NOP
t
RC
t
t
t
Load MODE
REGISTER
AS
AS
AS
CODE
CODE
CODE
Tp+1
Program MODE REGISTER
t
t
t
AH
AH
AH
Tp+2
t
NOP
MRD
DON'T CARE
ACTIVE
BANK
ROW
ROW
Tp+3
(2, 3, 4)
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